======================== unified (from filesystem) ========================
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                                      'lastfmtags'  "['dance', 'house', 'electroclash', 'electro', 'electronic']"
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                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
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                                      'tracktotal'  '22'
                                            'date'  '2000'
                                        'comments'  ''
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                                             'bpm'  '133.403'
                                             'key'  '5A'
                                        'acoustid'  '133e30dd-5af0-4fd9-ade9-a381ac0b6f01'
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======================== rawer (from filesystem) ========================

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'TALB' (Album/Movie/Show title)                     'Mixed Emotions: Montreal Mix Sessions, Vol. 5'
'TBPM' (BPM (beats per minute))                     '133.403'
'TCON' (Content type, a.k.a. Genre)                 'electronic-generic or radio-dance'
'TDOR' (Original release time)                      '2000'
'TDRC' (Recording time)                             '2000'
'TIPL' (Involved people list)                       TIPL(encoding=<Encoding.UTF16: 1>, people=[['DJ-mix', 'Tiga']])
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'TKEY' (Initial key)                                '5A'
'TMED' (Media type)                                 'CD'
'TPE1' (Lead performer(s)/Soloist(s))               'Johannes Heil'
'TPE2' (Band/orchestra/accompaniment)               'Tiga'
'TPOS' (Part of a set)                              '2/2'
'TPUB' (Publisher)                                  'Turbo'
'TRCK' (Track number/Position in set)               '19/22'
'TSO2'                                              'Tiga'
'TSOP' (Performer sort order)                       'Heil, Johannes'
'TSST' (Set subtitle)                               'Bonus Electro Funk CD'
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'TXXX:Artists'                                      'Johannes Heil'
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'TXXX:MusicBrainz Album Id'                         '9a8a7ab8-fd2b-4399-8d2a-58ee4290423f'
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'TXXX:MusicBrainz Artist Id'                        '94f2af9d-9707-43de-abd3-dbdf34114529'
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'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:SCRIPT'                                       'Latn'
'TXXX:lastfmtags'                                   ['dance', 'house', 'electroclash', 'electro', 'electronic']
'TXXX:originalyear'                                 '2000'
'TXXX:q-bass'                                       '2'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '3'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '3'
'TXXX:q-other'                                      '1'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '3'
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'TXXX:replaygain_track_gain'                        '-0.43 dB'
'TXXX:replaygain_track_peak'                        '0.506745'
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========================== row from database ==========================
                                              'id'  1297321
                                            'path'  /data/Music/Bulk/00poprockelectronic/Tiga/Electro funk/Tiga - 18 - Johannes Heil - Bittersuss.mp3
                                         'working'  None
                                         'bitrate'  160
                                    'duration_sec'  131
                                           'genre'  electronic-generic or radio-dance
                                        'filesize'  2681808
                                           'mtime'  1621696671
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic Electro funk 18 Johannes Heil Bittersuss electronic generic or radio dance
                                      'tag_artist'  Tiga
                                     'tag_release'  Mixed Emotions: Montreal Mix Sessions, Vol. 5
                                       'tag_title'  Bittersüss
                                             'bpm'  133.403
                                    'search_title'  'bittersuss':1,2
                                   'search_artist'  'tiga':1
                                  'search_release'  '5':10 'emotions':2,3 'mix':5 'mixed':1 'montreal':4 'sessions':6,7 'vol':8,9
                                     'search_rest'  '00poprockelectronic':1 '18':4 'bittersuss':7 'dance':12 'electro':2 'electronic':8 'funk':3 'generic':9 'heil':6 'johannes':5 'or':10 'radio':11
                                    'search_combo'  '00poprockelectronic':14 '18':17 '5':13C 'bittersuss':1A,2A,20 'dance':25 'electro':15 'electronic':21 'emotions':5C,6C 'funk':16 'generic':22 'heil':19 'johannes':18 'mix':8C 'mixed':4C 'montreal':7C 'or':23 'radio':24 'sessions':9C,10C 'tiga':3B 'vol':11C,12C
                                    'tag_tracknum'  19
                                      'num_images'  1
                                             'key'  5A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-3', 'q-play-3', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-4', 'q-syn-3', 'q-chart-3', 'q-other-1', 'Q-HAP-3', 'q-bass-2', 'q-grit-2']
                                      'lastfmtags'  ['dance', 'house', 'electroclash', 'electro', 'electronic']
                                        'tag_date'  2000
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1621696671.473335  (2021-05-22 17:17:51)
                             'size'  2681808